There's obvious patina on the face the dial but the numbers in marking look to crisps to not be a repaint or am I wrong? Thanks.
I am by no means knowledgeable enough to say one way or the other, but the 5 extending inside the sub-seconds field is what would make me question if this is a re-dial. It just looks odd and throws the balance off. That said, I really don't know and would wait for others with much more experience and knowledge to weigh in.